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A kitten to demo mouse handling

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Kovid Goyal
2021-09-28 13:43:23 +05:30
parent 769cd9be3f
commit 066dfc71aa
3 changed files with 72 additions and 9 deletions
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27
kittens/tui/loop.py
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@@ -12,6 +12,7 @@ import signal
import sys
import termios
from contextlib import contextmanager
from enum import Enum, IntFlag, auto
from functools import partial
from typing import Any, Callable, Dict, Generator, List, NamedTuple, Optional
@@ -21,8 +22,7 @@ from kitty.fast_data_types import (
parse_input_from_terminal, raw_tty
)
from kitty.key_encoding import (
ALT, CTRL, PRESS, RELEASE, REPEAT, SHIFT, backspace_key, decode_key_event,
enter_key
ALT, CTRL, SHIFT, backspace_key, decode_key_event, enter_key
)
from kitty.typing import ImageManagerType, KeyEventType, Protocol
from kitty.utils import (
@@ -78,11 +78,12 @@ class TermManager:
self.extra_finalize: Optional[str] = None
self.optional_actions = optional_actions
self.use_alternate_screen = use_alternate_screen
self.mouse_tracking = mouse_tracking
def set_state_for_loop(self, set_raw: bool = True) -> None:
if set_raw:
raw_tty(self.tty_fd, self.original_termios)
write_all(self.tty_fd, init_state(self.use_alternate_screen))
write_all(self.tty_fd, init_state(self.use_alternate_screen, self.mouse_tracking))
def reset_state_to_original(self) -> None:
normal_tty(self.tty_fd, self.original_termios)
@@ -107,9 +108,11 @@ class TermManager:
del self.tty_fd, self.original_termios
LEFT, MIDDLE, RIGHT, FOURTH, FIFTH = 1, 2, 4, 8, 16
DRAG = REPEAT
bmap = {0: LEFT, 1: MIDDLE, 2: RIGHT}
class MouseButton(IntFlag):
LEFT, MIDDLE, RIGHT, FOURTH, FIFTH = 1, 2, 4, 8, 16
bmap = {0: MouseButton.LEFT, 1: MouseButton.MIDDLE, 2: MouseButton.RIGHT}
MOTION_INDICATOR = 1 << 5
EXTRA_BUTTON_INDICATOR = 1 << 6
SHIFT_INDICATOR = 1 << 2
@@ -117,12 +120,18 @@ ALT_INDICATOR = 1 << 3
CTRL_INDICATOR = 1 << 4
class EventType(Enum):
PRESS = auto()
RELEASE = auto()
MOVE = auto()
class MouseEvent(NamedTuple):
cell_x: int
cell_y: int
pixel_x: int
pixel_y: int
type: int
type: EventType
buttons: int
mods: int
@@ -136,12 +145,12 @@ def decode_sgr_mouse(text: str, screen_size: ScreenSize) -> MouseEvent:
cb_, x_, y_ = text.split(';')
m, y_ = y_[-1], y_[:-1]
cb, x, y = map(int, (cb_, x_, y_))
typ = RELEASE if m == 'm' else (DRAG if cb & MOTION_INDICATOR else PRESS)
typ = EventType.RELEASE if m == 'm' else (EventType.MOVE if cb & MOTION_INDICATOR else EventType.PRESS)
buttons = 0
cb3 = cb & 3
if cb3 != 3:
if cb & EXTRA_BUTTON_INDICATOR:
buttons |= FIFTH if cb3 & 1 else FOURTH
buttons |= MouseButton.FIFTH if cb3 & 1 else MouseButton.FOURTH
else:
buttons |= bmap[cb3]
mods = 0